Demountable kim



c-xn, PAXSON.

-DEMOUNTABLE RIM.

APPLICATION FILED FEB. I. I9l8.

1,364,515, Patented Jan. 4, 1921.

2 SHEETS-SHEET 0. 0. PAXSON. DE'M O'UNTABLE REM. APPLICATION FILED FEB- 19KB.

2 SHEETS-SHEE'LZ.

Patented Jan. 4, E9- 5.

In '0 e 11 11774: (MAW E WW izznmvw will.

. To all w ham it may concern UNITED Y '1 o LvInD. rAXsomoFoLEvEL nn, orrro. I";

DEMOUNTABLE nniij Be it known thatI, CALVIN a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and Stateof Ohio, have invented a certain new" and useful Improvement in Demountable Rims, of which the following is a full, clear,

and exact description.

This invention relates to certain improve-, ments in demountable rims for wheels, par-' ticularly automobile wheels, and has for its main object to provide a rim construction such that. a tire can be quickly applied to or removed from the rim. Still further the invention aims to accomplish this with a construction which ellminates the necessity for movable locking or-latching devices suchas consisting in certain novel details of con- I struction and combinations and arrangements of parts which will be described in the'specification and pended claims.

In the accompanying sheets of drawings,

Figure 1 is a perspective viewofa rim constructed 1n accordance with one embodiment of myinvention, the tire beingapplied to the rim; Fig. 2 is asimilar view, butgwith the relatively short seotionof thejrim detached fromthe body portion or main section of the rim, and with the main section slightly displaced from normal position with I ing the ,efliciency of the rim," but it is 1m: portant, if not essential, that'the major secp i tion be not less than foui sevenths, nor 5 respect to the tire preliminary to swinging it laterally to remove ittherefrom; Fig. 3 is a similar view showing how the main sec tion is swung laterallyto remove it from the tire; Fig. 4 is a view of a portion of a vehicle wheel with parts in section, showing my improved rim in position thereon; Fig. 5 is a fragmentary outside view on an enlarged scale, showing the. minor removable or' D. PAxsoN,

tween one end of the minor section and the set forth infthe ap- Specification. 5: ii P Patented Jan. 41, 1921,. f Application file'dFebruary lj, 1913. f fist-e1 No. 214,958]. i

rim; Fig. 7 shows 'the preferred formof special dove-tail interlocking connection be adjacent end of the major section, the two parts being slightly "separated endw-ise ;Fig.

8 isia similarvi ew showing a slight modi fication; Flg. 91s a similar view showing a furthermodlficatio'n; FigJlO is a side view with partsinysection, showing one end of the major section and the adjoining end of the minor section, thesetwolends having the, i I special dove-tall interlocking connecting I parts, and this view showing themanner in which the interfitting parts are inserted, one

within the other, and how theminor ection is swung to bring aboutth'elocked relation- I ship Fig.11 is afragmentary side view with parts broken away,"sho w ingthe' ends of the minorand major sections opposite to f the ends shown in Fig.-10-;*and Fig..12 is a similar view showing a slight modification as to the location of the opening for the? valve stem; v i Y Referring now' 'to the figures of the drawing in which similar *partsare designated sents the. rim, '11 the tire whichis to be seated on the rim, and 12"(Fig. a pori I tion of a vehi'cle wheel to which'the rim and manner.

The rim 1 0, which as before stated, is constructed to permit the ready and quick re' moval from, 'or application thereto of the tire 11, is composed of a main'ormajorseo by similar reference characters-10 rep'retion 10 and a minor section 10", which is wholly or bodily removable fromthe major section.

This -minor section is preferably about one-third of the circumference of the rim, 2". 6,"; about 120 of arcuate length. Of course, the; length may be' increased or decreased'somewhat'with'out'materially afiect- Y,

greater than three-fourths of thecircumferbe not less than one-fourth and not greater extend through the major section near one in Figs. 2 and 3. Thereasons for them,-

end thereof, as clearly shown f example.

latching devices such as the pivoted latch of my priorPatent No. 1,223,900, to hold the minor. section in proper position withv respect to the major section.

I accomplish this by providing between two adjoining ends of the major and minor sections a; special. interlocking connection which prevents relative movement when the minor section is swungto final position, and

at theopposite ends a simpleattaching de-- vice such as anoverlapping cleat, preferably attached; to the minor section and engaging a 'lugor equlvalent devlce on the adjolning end of the major v section.

Considering now the embodiment. of my invention shown in Figs. 5,6 and 7, it will be observed that this special interlocking connection is in the form of a special clovetail connection. having parts on the, two

. members to. be,connect'ed,so formed and arranged that the part on onepiece can be inserted into, an opening of the ad oining piece, with the, minor. section arranged at.

an angle to the major section but in the plane. of the-rim, and when theminor section is swung tonormal positionthese partsdove-tail or interlock and hold against relative movement in any direction until the minor section is again swung back or inward. away. fromnormal position.

In carrying out thisembodiment referred to, Lprovide on the=end of the major section a slot or notch 14:, with an enlarged.

inner part. and relatively. narrow neck leading from theenlarged part to the. end of the major section. Additionally the major the end, of the minor section.

bodiment under consideration,the enlarged; partsof the slot 14 and extension 16are cirportionhasattached to its inner face .a plate 15 which coversa portionof the enlarged 1 part of the slot 14 (see particularly Fig.

7). Additionally I: provide on the adjoining. end ofv the minor section an extension 16 having an enlarged: part of a size to fitv into the enlarged part of the slot.141, and a neck leading from said enlarged art to In t 8-6111:

cular. Additionally the minor section has on its inner side aplate 17 which extends from the end of the minor section and partly. coversor overlaps the extension 16..

At the-opposite end of the minor section I provide a cleat or equivalent simple holding device 18, said cleat projecting beyond the end of the minor section so it will overlap the adjoining end of the major section, the projecting or extended end having an opening adapted to receive or fit onto a lug 19 suitably positioned on, and projecting from the inner side of the major section.

To attach the two parts constructed as above described, the top of the enlarged part 16 of the extension on the minor section isinserted into the enlarged part 14 of the slot on the major section, with the parts positioned substantially as shown in Fig. 1O, 71. 6. with the minor section extending inwardly, but in theplane of therim. When the parts are positioned as in Fig. 10, it is then only necessary to swingthe. minor section outwardly to ,normal position, whereuponthe entire extension 16 011 the minor section. slips into the slot 1.4: onthe end of the major section, and the. two. plates. 15 and 17. by their. engagement. respectively with theunder side of the major portion of, the rim. and. the under side. ofv the. en? larged part of the extensionprojecting beyond. the ,plate .17:',,prevent disengagement of, the'parts, or movementin any directiomj. .e. inward or outward movement, or. endwise movement, until. the section is again swung. inward to permit. disengagement of the parts.

When the minor section isswung to normal. position: andthe parts areinterlocked in the manner above described, the. oppoa site ends: of. the minor. and. major sections are caused. to snap together, and the open? ing of the cleat.18receivesthelu 19,-near. the: end- 0f the, major. section. are now held in their. normal. operative positions.

It is notessential that.the,..intenlocking. parts at the leftzhand. side ofiFigs, 5; and 6 be, shaped precisely as; shown in. said. fig ures. For. example,,in. Fig. 8 the enlarged. part of theslot 1 4 at..the. end of. the=maj0r section. is. shown.- as hexagonal, andcthe. ex.- tension 16 on the minor section which. is designed to bereceivedimthe slot, is simi+ larly shaped.

In. Fig. 9 there is still a further modification, a.slot.designatedle being ano en slot of equal diameter fromendto end., heex: tension- 141 on the minorsection is "similarly. shaped, but. endwisemovement between the partsis pre-vented'bythe registrationof a.pin with an opening,jthe.pin being in. this case, on the .plate 15, and;designated.15?, andthe opening *being inthis ease, onthe: extension 16 and designated-16 Of course the relative locations of the pin..-a.nd.. opening can be reversed. Thus it. will" beseen thatz-when.

the extension 16 is. insertedinto. tlie slot 14 with the minor section at an. angle to. the majorsection, and then when-the. minor.

SQCtlOlLlS' rocked to normal position. in cincumferential ahnement. with, the ma or section, the pin 15. will. slide into theopening.

'f he, parts gaging position.

the minor section is swung again to disen- From the above. it will be seen that the interlocking parts at one set of ends of the major and minor sections may be variously constructed, it being only essential that they be so formed that ,the two parts can be placed together with the minor section at an angle to its normal position, and that theyv subsequently interlock when the minor section 1s swung to'final position so as to prevent accidental dlsengagement, it being understood that the engagement between the opposite ends of the major and minor sections together with the action of the cleat prevents the accidental swinging of the minor section from normal position until such swinging movement is desired, and in fact, caused in the manner hereinafter referred to.

It has been previously I stated that the valve stem should extend through the major section near one end thereof, in order that the major section of the rim can be readily removed from, or applied to the rim in the manner hereinafter described. The valve stem may extend through the lug or stud 19 with which the cleat 18 engages, in which event, of course, the lug will be hollow. This is clearly shown in Fig. 11. It is not necessary, however, that the valve stem extend through the lug 19, but it may pass through a separate opening which is independent of the cleat 18, but preferably located just beyond the end of the same, as shown in Fig. 12.

.To remove the tire from the rim, the tire and rim will be positioned as in Fig. 1. Then the tire and rim will be bounced on the floor, and the inward movement of the tire opposite the minor section will cause the minor section to be disengaged and swung inwardly about the, special dovetail connecting end as a pivot, the end having the cleat first dis-engaging. The minor section will then drop out of place or can be lifted out by hand. Then the tire is again bounced on the floor while in the position shown in Fig. 2, whereupon the flattening or sagging of the tire into the open space caused by the removal of the minor section will cause the major section to sink or slide down slightly into the tire so that the middle part of the major section is clear of the rim portion of the tire as shown in Fig. 2. Then the operator swings the major portion of the rim laterally as shown in Fig. 3, this swinging the majorsection, which has the opening for the valve"stem, is first set into thetire and thestemis extended through the opening of the rim. Then the major portion is progressively seated within the tire. Then the minorsection is placed in position, first by placing the minor section atan angle to the major section, but in the plane of themajor section with the extending part of the minor section inserted into the opening at the end of the major section, as shown in Fig. 10, and then the mlnor sectlon'ls swung outward about the engaging ends as a pivot These operations of as sembling and dis-assemblingthe parts can 7 be performed quickly and with ease, whereas with demountable rims with which I am familiar, the removal or replacing of the tire requires considerable skill and no little time and labor. The parts of my improved rim can be assembled or dis-assembled, even mud or ice, because there are no swinging, moving or adjusting locking partsor elements which can become frozen or caked with mud or rust into place, and so made difficult to loosen or operate. This is a feature which commends itself very readily to users of demountable rims who have, had) occasion to place a tire on a rim or to remove the sametherefrom under adverse conditions.

The folly of the wheel will, of course, be notched or designed to accommodate the plates 15 and 17 at two adjoining ends of the major and minor sections and also to accommodate thecleat 18 and theboss' orlug 19 with which the cleat registers. In fact,

. these parts can be conveniently employed as friction devices to prevent the creeping of the rim about the folly, and do away with the necessity for special anti-creeping or holding devices.

Other changes in detailsof construction may suggest themselves to one skilled in the art, and while I have shown only afew of the modificationswhich may be made, I aim in my claims to cover all changes which do not involve a departure from the spirit and scope of .my invention in its" broadest as pect.

100 though they are more or less caked with Having described my invention, I claim:

1. A demountable rim for wheels comprising a major section, and a minor section which is bodily removable therefrom,- one end of the major section and one end of the minor section having parts which interlock and hold said ends against relative movement in any direction as long as the opposite ends of the major and minor sections are in normal position, said parts at the first-named ends of the major and minor sections including a slot at one end, a ton ue on the other end which is received in the slot, and .abutments on the inner side of both ends, one partly overlapping the slot and the other partly overlapping the tongue. 1

2. A demountable rim for wheels comprising a major section, and a minor section which is bodily removable therefrom, one end of the major section and one end of the minor section having parts formed so as to hold said ends against relative movement in any direction as long as the opposite end of the minor section is in normal position with respect to the corresponding end of the major section, said parts including a dovetail extension and a dovetail slot, one formed in the end of the major section and the other formed in the end of the minor section, and a pair of abutments at said ends of the major and minor sections on the inner sides thereof, and one partly overlapping the slot and the other partly overlapping the tongue.

3. A demountable rim for wheels com prising a major section, and a minor section which is bodily removable therefrom, one end of the major section and the adjacent end of the minor section having parts which interlock and hold said ends against relative movement in any direction as long as the opposite end of the minor section is in normal position with respect to the corresponding end of the major section, said parts including a dovetail slot and a correspondingly shaped dovetail tongue formed on the two parts respectively, and a pair of abutting plates on the inner sides of the iajor and minor sections, one plate partly overlapping the slot and the other partly overlapping the tongue.

In testimony whereof, I hereunto afiix my signature.

CALVIN D. PAXSON. 

